JPH06333629A - Connector for shielded line - Google Patents

Abstract

PURPOSE:To simplify connector reassembling work when terminals connected to a pair shielded line are inserted erroneously in a housing. CONSTITUTION:A housing 7 has cavities 9 and 9 in which terminals 6 and 6 connected to conductors 3 and 3 of a pair shielded line 1 are arranged opposite to each other so as to be housed, and is arranged symmetrically in external appearance, and an outer cover 11 which surrounds the housing and holds it reversibly freely is arranged so as to be fitted to a fellow connector.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shielded wire connector, and more specifically, it simplifies the work of repairing the terminals respectively connected to the twisted pair shielded wires in the housing to reduce the number of work steps. The present invention relates to a shielded wire connector that can be designed and downsized.

[0002]

2. Description of the Related Art A conventional shielded wire connector is disclosed in, for example, Japanese Patent Laid-Open No. 4-259770. As shown in FIG. 8, when the tip of a female housing 30 having a substantially tubular shape is fitted into a male housing 31 having a tubular shape and an enlarged tip portion as shown in FIG. The terminals 37 and 38 connected to the extension lines 35 and 36, which are exposed at the ends of the wire 32 and are separated from each other, are connected to each other to electrically connect the connectors. Has been obtained. On the other hand, the shield line is connected to the shield line 3
The connecting fitting 34 is caulked and fixed to the outer peripheral surface of the braided wire (hereinafter referred to as a shield material) 33 which is exposed by peeling off the insulating coating 2 and the engaging portion 34 a provided on the connecting fitting 34.
Is engaged with an engaged portion (not shown) of the shield material terminals 44, 44 inserted into the respective housings 30, 31 in the same manner as the terminals 37, 38, so that the shield material terminals 44, 44 at the time of connector coupling. It is achieved by connecting each other.

By the way, in such a connector structure, as is apparent from the drawing, the extension 3 exposed at the end of the shielded wire 32.
The shorter the length of 5, 36 is, the more advantageous the shielding effect is.

However, when assembling this connector, for example, when assembling a female connector, if the lengths of the extension lines 35, 35 are short, the terminals 37, 37 are inserted into the cavities 40, 40 in the housing 30 separately. Difficult to make
Therefore, the connector is assembled by inserting the terminals 37, 37 connected to the extension lines 35, 35 into the cavities 40, 40 at the same time.
It is attached to the housing by engaging with the elastic stoppers 42, 42 in the shape of a protrusion in 40.

[0005]

Due to the assembling process,
If the insertion positions of the female terminals 37, 37 into the cavities 40, 40 are mistaken and the terminal positions of the input / output signals are opposite to those of the mating connector, and it becomes necessary to reassemble the connectors, the respective terminals 37, 37 For the same reason as when inserting 2
The book must be removed from the housing 30 at the same time. However, this kind of repair work is required for each cavity 4
While keeping the two elastic locking portions 42, 42 in 0, 40 elastically deformed at the same time, at the same time, the connection fitting 34
Since it has to be carried out in a state where the engagement between the shield material terminal 44 and the shield material terminal 44 has been released, a great deal of time and labor is involved, resulting in a large increase in the number of working steps. It should be noted that it is possible to set the separated length of each extension end to a sufficient length so that each terminal can be inserted into and removed from the cavity separately, but in the case of such a configuration, In addition to the measures for reducing the shield effect, a large cavity is required for accommodating the exposed extension line, and the connector is increased in size. The present invention has been made based on the above circumstances, and an object of the present invention is to provide a shielded wire connector which can easily correct erroneous insertion of terminals and is excellent in connector assembly workability.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide, in a shielded wire connector for connecting a shielded wire, an insulating housing for accommodating a terminal of an extension wire in a cavity in a symmetrical state, and the insulating housing. It is achieved by a shielded wire connector which is characterized by comprising an outer cover which surrounds and holds it in a reversible manner.

[0007]

The insulating housing having the pair of terminals housed in the cavity is surrounded by the outer cover and is held in a reversible manner. Therefore, when the terminals are erroneously inserted into the cavity, the housing is erroneously inserted. By reversing by 180 degrees and re-storing it in the outer cover, the work of extracting the terminal from the housing is omitted, the polar position is changed, and erroneous insertion can be substantially eliminated. Further, by carrying out such change work, it is possible to prevent a large increase in the number of work steps.

Further, if the outer cover is configured to hold the housing and to be electrically conductive and to be connected to the shield material of the pair shield wire, the shield portion can be easily connected in the connector connection. realizable. Further, with the above structure, the connector structure can be simplified by omitting the shield material terminal in the conventional connector.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 show a shield wire connector according to an embodiment of the present invention, FIG. 1 is an exploded perspective view of the connector, FIG. 2 is a vertical sectional view of a housing incorporated in the connector, and FIG. A vertical cross-sectional view in the coupled state with the mating connector,
4 to 6 are perspective views for explaining respective steps in the connector assembling work. In this embodiment, the case where the shield wire connector is configured as a female connector will be described.

In this shielded wire connector, a pair of cavities 9, 9 are formed in the vertical direction shown in the drawing so that a pair of female terminals 6 and 6 are opposed to each other and housed in a housing 7.
And encloses the housing 7 and holds it in a reversible manner,
An outer cover 11 including an upper cover 12 and a lower cover 13.
And has a general configuration.

The pair shield wire 1 has its insulating coating stripped off at its end to expose the extension wires 3 and 3 and the shield material 2, and the exposed extension wires 3 and 3 are separated. There is. On the outer peripheral surface of the shield member 2, a connecting fitting 5 having a pair of left and right flange portions 5a, 5a having a downward U-shape is attached by caulking a caulking locking claw 5b. Further, female terminals 6 for input signals and female terminals 6 for output signals are attached to the tips of the extension lines 3 and 3 by caulking the respective barrels 6a.

The housing 7 is made of an insulating material and is formed by resin molding so as to be vertically symmetrical with respect to the center in the height direction. The inside of the hollow body having a substantially rectangular shape has a partition wall 10 as shown in FIG. It is divided into two and has a pair of upper and lower cavities 9, 9 penetrating in the front-rear direction. The openings 9a, 9a on the front end faces of the cavities 9, 9 are also formed so as to be symmetrical with respect to the central horizontal plane CL, and the partition wall 10 has terminals that elastically project into the respective cavities 9. Elastic claws 10a, 10a for engagement are provided.

An engaging groove 14 of a lower cover 13 which will be described later is formed on the rear end edge of the housing 7 so as to project like flanges to the left and right sides.
Engagement pieces 7a that engage with are connected in series, and cut-and-raised pieces 8 which can be opened and closed rearward are provided in the rear half of the upper and lower surfaces of the housing 7. Further, inside the cut-and-raised pieces 8 and 8, in the closed state, the cavity 9 and
Stoppers 8a, 8a are provided so as to abut the rear ends of the female terminals 6, 6 housed in the terminal 9 and prevent the terminals 6, 6 from coming off.

The outer cover 11 is provided in a substantially hollow box shape surrounding the housing 7 by the engagement of the upper cover 12 and the lower cover 13, and has metal plating on the surface to have conductivity. ing. Since the outer cover 11 has conductivity, a metal shell may be disposed inside by integral molding.

The lower cover 13 partially surrounds the housing 7 in the front half portion and projects from the front surface. The lower cover 13 supports the housing 7 in the rear half portion and is pulled out from the rear end of the housing 7. The pair shield line 1 is accommodated so as to pass therethrough, and is formed of a substantially rectangular body having an open upper surface. Further, the lower cover 13 is provided with a double wall structure at the front end of the latter half portion to form an engagement groove 14, and the engagement groove 14 is fitted with the engagement piece 7 a of the housing 7. By doing so, the housing 7 is regulated in position to a predetermined position.

On the rear end surface of the lower cover 13, a semi-cylindrical receiving portion 13a for guiding the pair shield wire 1 to the outside is provided so as to project. The receiving portion 13a is an inner rear end of the lower cover 13. It is communicated with the semicircular receiving groove 16a of the pedestal portion 16 provided at. The upper surface of the pedestal portion 16 has a pair of left and right screw holes 1
6b and a narrow groove 16c are provided respectively. Further, the left and right side walls 13b forming the front half of the lower cover 13 are provided with projections 15 for locking the upper cover 12, respectively.

The upper cover 12 is formed in a lid shape to be attached to the lower cover 13, and has a pair of through holes 17 and 17 which are opened at positions near the rear portion and a receiving portion of the lower cover 13 at the rear end surface. 1
A receiving portion 12 which is integrated with 3a and supports the pair shield wire 1.
a and are provided. 20 is a bolt fitted into the through hole 17, and 21 (see FIG. 3) is a nut screwed with the bolt 20.

A locking hole 22 into which the projection 15 provided on the lower cover 13 is fitted is provided at a position near the front end of the upper cover 12. Further, on the upper surface of the upper cover 12, there is provided a connecting portion 18 composed of a pair of standing walls 12b, 12b extending in the front-rear direction and a horizontal plate 12c spanning a part of the upper walls thereof. In the portion 18, the cross section is substantially inverted S
A metal piece 19 formed in a letter shape and having an elastic action can be incorporated.

FIG. 3 shows a female connector F having the above construction.
FIG. 6 is a cross-sectional view showing how the male connector M on the mating side and the mating side are coupled. The male connector M accommodates the male terminals 25 and the terminal support 26 into which the male terminals 25 are inserted, engages with the outer cover 11 of the female connector F, and has the female connector F.
The main body 24 is configured to receive the housing 7 and, like the outer cover 11 of the female connector F, the main body 24 is provided with conductivity by being plated with metal.

A part of the upper surface of the main body 24 is a female connector F.
The outer cover 11 and the main body 24 are brought into close contact with each other by the metal piece 19 formed on the engaging portion 27 inserted into the connecting portion 18 of the connecting portion 18 and the electrical connection at the shield portion. Is achieved. The male terminals 25, 25 and the female terminals 6, 6 are joined together.

Next, the process of assembling the female connector F in the shielded wire connector of this embodiment will be described with reference to FIGS. First, pair shield wire 1
Of each of the extension lines 3 and 3 corresponding to the input signal line and the output signal line which are provided with the exposed portion made as short as possible and separated from each other.
The female terminals 6 and 6 are connected to each other. The female terminals 6 and 6 connected to the shielded wire 1 are simultaneously inserted into the cavities 9 and 9 in the housing 7, and the cavities 9 and 9 are inserted.
Insert to the tip of. Female terminals 6 and 6 are cavities 9 and 9
When the elastic claws 10a and 10a in the housing 7 are engaged with the female terminals 6 and 6, respectively, the female terminals 6 and 6 are regulated so that they cannot be pulled out backward. When the locking of the female terminals 6 and 6 is confirmed, the cut-and-raised pieces 8 and 8 of the housing 7 are closed next, and the stoppers 8a and 8a come into contact with the rear edges of the female terminals 6 and 6. The female terminals 6 and 6 are doubly locked.

The housing 7 in which the female terminals 6 and 6 are assembled by the above steps is fitted and inserted from above so that the engaging pieces 7a and 7a engage with the engaging grooves 14 and 14 of the lower cover 13, respectively. Place inside 13. After that, the shield of shielded wire 1
The lower cover 13 with the connection fitting 5 that is caulked and connected to the field member 2.
The flange portions 5a, 5 of the connection fitting 5 which are arranged on the base portion 16 of the
The shield wire 1 is routed in the receiving groove 16a of the pedestal 16 and the receiving portion 13a by fitting a into the receiving groove 16a. The cut-and-raised pieces 8 and 8 of the housing 7 can be provided in a closed state with respect to the housing 7 by the cover wall when mounted on the outer cover 11, and in that case, the outer cover 1
At the same time that the housing 7 is attached to the housing 1, the terminal can be double-locked, and the work can be simplified.

Next, the upper cover 12 is put on the lower cover 13 so that the projections 15 and 15 of the lower cover 13 are engaged with the locking holes 22 and 22 of the upper cover 12, and the receiving portion 12a of the upper cover 12 is covered. The shield wire 1 is sandwiched by and the upper and lower covers 12, 13 are integrally tightened by the bolts 20, 20 and the nuts 21, 21 to complete the connector assembly.

After the shield wire connector is assembled in accordance with the above steps, the female terminals 6 and 6 are erroneously inserted into the cavities 9 and 9, and as a result, the shield wire 1 to the outer cover 11 is formed. If there is an error in the mounting direction of the inner cover, that is, the polarity between the extension lines 3 and 3 corresponding to the input signal line and the output signal line, the upper cover 12 is subjected to a process reverse to that at the time of assembly.
After pulling up the housing 7 from the released lower cover 13, the housing 7 is rotated 180 degrees, that is, inverted, as shown in FIG. After that, the housing 7 is fitted and inserted again so that the locking pieces 7a, 7a engage with the engaging grooves 14, 14 and is housed in the lower cover 13 and the upper cover 12 is united. Can be resolved.

The female connector F, which has been assembled through the above steps, is connected to the male connector M and the female terminals 6 and 6 are connected.
The male terminals 25, 25 are engaged with each other to establish an electrical connection. Further, by fitting the outer cover 11 having conductivity and the main body 24, electrical connection between the connectors is performed via the shield material 2 and the connection fitting 5. Further, the metal plate 19 of the upper cover 12 is the outer cover 1
When the 1 and the main body 24 are connected, they are arranged in a close contact state between them and serve to strengthen the electrical connection between them. Since the housing shape is vertically symmetrical when inserting the terminal into the cavity, erroneous insertion is likely to occur. Therefore, the notch 7b is provided at one end of the housing 7 in the vertical direction.
Even so, if an erroneous insertion occurs, the connector of the present invention allows easy reassembly of the connector.

In the above embodiment, the case where the cavities 9, 9 of the two chambers are arranged vertically in the housing 7 is shown. However, as a modification, the cavities 9 are arranged horizontally as shown in FIG. The cavities 29, 29 in the housing 28 are arranged so as to be point-symmetric with respect to the center P of the housing 28, and the connector 2 has such a shape.
8 may be provided so as to be built therein.

[0027]

As described above, according to the shielded wire connector of the present invention, the housing accommodating the terminals at symmetrical positions is held by the outer cover so as to be reversible, so that the housing for the terminals is provided. Even if a wrong insertion occurs, the housing can be inverted and held by the outer cover, so that the wrong insertion can be easily eliminated and the polarity can be corrected.
The time and effort required for reassembling the conventional connector can be greatly reduced. Further, since the outer cover and the main body are made electrically conductive and interconnection of the shield portions is achieved simply by connecting the connectors, the connector structure can be simplified and an increase in manufacturing cost can be prevented. Furthermore, the exposed end of the pair shielded wire is made as short as possible, and at the same time, the rear half of the outer cover is set to a length that can simply absorb the twist of the paired shielded wire. can do. Moreover, even if it is formed in such a small size, it is possible to favorably perform the reassembly work due to the incorrect insertion of the terminal as described above.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a shield wire connector according to an embodiment of the present invention.

2 is a vertical cross-sectional view of a housing incorporated in the connector of FIG.

FIG. 3 is a vertical cross-sectional view of a connector for explaining a connection state with a mating connector.

FIG. 4 is a perspective view showing an assembly process of the connector.

FIG. 5 is a perspective view showing an assembly process of the connector.

FIG. 6 is a perspective view showing an assembly process of the connector.

FIG. 7 is a housing front view showing a modified example of the housing.

FIG. 8 is a vertical cross-sectional view showing a conventional shield wire connector.

[Explanation of symbols]

 1 Pair shield wire 2 Shield material 3 Extension wire 5 Connection fitting 6 Female terminal 7,28 Housing 8 Cut and raised piece 8a Stopper 9,29 Cavity 10a Elastic claw 11 Outer cover 12 Upper cover 13 Lower cover 14 Engagement Groove F Female connector M Male connector

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[Procedure amendment]

[Submission date] September 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

Claims (4)

[Claims] 1. In a shielded wire connector for connecting a shielded wire, an insulating housing for accommodating a terminal of an extension wire in a cavity in a symmetrical state, and an outer cover for surrounding the insulating housing and holding it in a reversible manner. -A shielded wire connector that is characterized by a flat structure. 2. The shielded wire connector according to claim 1, wherein the outer cover has conductivity and is electrically connected to a shield material of the shielded wire. 3. The outer cover comprises a lower cover and an upper cover engaging with the lower cover.
Alternatively, the shielded wire connector described in 2. 4. The shielded wire connector according to claim 1, wherein the insulating housing is integrally provided with a cut-and-raised piece that double-locks the terminal at the tip of the extension wire. .